Wednesday
March 4, 2015

Homework Help: biochem

Posted by amy on Saturday, September 10, 2011 at 6:40pm.

I need to create a 100ml buffer with a pH of 4.00 using 0.100M Benzoic acid (pKa = 4.20)and 0.180M sodium benzoate. What volume of each material do I need to make this buffer? I think I need to use pH=pKa + log(A/HA)but am not sure if that is correct. Any help would be appreciated.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - You need to prepare 100.0 mL of a pH=4.00 buffer solution using 0....
Chemistry - You need to prepare 100.0 mL of a pH=4.00 buffer solution using 0....
Chemistry - You are asked to prepare a pH=4.00 buffer starting from 1.50 L of 0....
Chemistry - Given that the Ka of benzoic acid is 6.50 x 10-5, how would one ...
Chemistry - Given that the Ka of benzoic acid is 6.50 x 10-5, how would one ...
chemistry - URGENT!!! How many grams of sodium benzoate (NaC6H5CO2) must be ...
school - What is the pH of 0.1 M formic acid solution? Ka=1.7e10-4? What is the...
Chemistry - If you need to prepare 250.0 mL of a pH 5.00 buffer that has a total...
Chemistry - Calculate the pH of a buffer solution that contains 0.23 M benzoic ...
CHEMISTRY HELP! - a. According to the Henderson-Hasselbalch equation, how many ...

Members